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aleksandrvk [35]
3 years ago
7

Summarize the four steps to natural selection

Biology
1 answer:
Anna11 [10]3 years ago
5 0

Overproduction - An organism gives birth to too many children

Genetic Variation - The offspring each have genetic differences in appearance, behavior, etc

Struggle to Survive - Offspring must fight in order to gain essential resources (food, water, mates, etc)

Successful Reproduction - Organism produces offspring with beneficial adaptations that aid in survival

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krok68 [10]
Aluminium, an adjuvant.
MF59 (squalene oil), an adjuvant.
Thiomersal, also called Thimerosal.
8 0
3 years ago
Hershey and Chase used a DNA-based virus for their work. How might the results have been different if they had used an RNA virus
4vir4ik [10]

Answer:

The correct answer is c.With an RNA virus, radioactive RNA would have been in the final pellet.

Explanation:

Hershey and Chase infected<em> E.coil</em> with bacteriophage which was having DNA as its genetic material. The bacteriophage was labeled with radioactive sulfur and radioactive phosphorus and it was radioactive phosphorus that was found in the bacterial cells or pellet.  

As because DNA contains phosphorus, not protein therefore they it was proved that DNA is the genetic material. Similarly, RNA is also a nucleic acid which is genetic material for many viruses and contains phosphorus.

So if Hershey and chase might have chosen an RNA virus then radioactive RNA would have been present in the pellet. So the correct answer is c.

7 0
3 years ago
Proceed through meiosis to anaphase I. Which chromosomes went up and which went down? Up: Down:
fomenos

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Lg and dp went up and dg and lp went down

Explanation:

3 0
2 years ago
The synaptic potentials produced by cell bodies (soma) and dendrites in the cerebral cortex create electrical activity that can
Oduvanchick [21]

Answer:

Electroencephalogram

Explanation:

In the cerebral cortex, cell bodies (soma) and dendrites produce the synaptic potentials that create an electrical activity that can be measured by electrodes placed on the scalp resulting in an <u>Electroencephalogram</u>.

a test or record of brain activity produced by electroencephalography.

Electroencephalography is an electrophysiological monitoring method to test or record brain activity.

<u />

4 0
2 years ago
When enzymes in your body digest your food, what type of biomacromolecule is at work?
Lelechka [254]

Answer:

Fat, starch, sugars and protein.

Explanation:

Enzymes break these biomacromolecule bcoz cells get energy by breaking them.

7 0
3 years ago
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